DE2545096A1 - DRILLING SYSTEM OR DRILLING FRAME, IN PARTICULAR MOBILE (S), SELF-PROPELLED (S) DRILLING RIG, OR DRILLING FRAME WITH A TRANSPORTABLE, TELESCOPIC SLIDING MAST - Google Patents

Description

PATENT AGENCY OFFICE

BERLIN - MUNICH

PATENT LAWYERS

DIPL-ING. W. MEISSNER (BLN) DIPL-ING. P. E. MEISSNER (MCHN) DIPL-ING. H.-J. PRESTING (BLN)

1 BERLIN 33, HERBERTSTR. 22nd

■ 4 (T. 375

Your reference Your letter from our reference MU- 82 Berlin, the ^v

LW: st

Dresser Case ID-74-4

Case 280-

DRESSER INDUSTRIES, -INC.

The Dresser Building, Elm and Akard Streets

Dallas, Texas 75 221 / USA

Drilling rig or drilling rig, in particular movable, self-propelled (s) Drilling rig or drilling rig with a transportable, telescoping mast

The invention relates to a drilling rig, in particular on a movable, self-propelled drilling rig with a transportable, telescoping mast, which is designed high enough to be able to operate a drill pipe composed of three individual pipe lengths.

Drill tubes are typically manufactured in lengths of 9 »15 m (30 feet) each. Movable drilling rigs with which drill pipes composed of two individual pipes can be handled are known. These are, for example, systems mounted on a trailer or racks _f mounted on two trailers

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Systems as well as systems mounted on a truck. When the system is mounted on a trailer, a semi-trailer truck is used used, which the whole arrangement including the telescopic mast, the drill winch and the power supply device wearing. Due to the restrictions on the axle weight allowed on roads, the largest on one single trailer-mounted mast, only a drill pipe composed of two lengths of pipe can be operated. The same applies for the truck-mounted system in which a single elongated truck chassis is used to support the to transport individual components of the system,

With the system mounted on two trailers, one trailer carries the mast and associated equipment, while a second Trailer carries the machinery and the drill winch. Here are two trucks to pull the trailer used so that the system actually has two truck-trailer combinations.

As a result of the statutory axle load restrictions, neither the system mounted on a trailer nor the system mounted on a truck carry a mast that is large enough is to haul a three-length pipe or 90 foot (27.5 m) long drill pipe at one time.

With the help of two trailers, a mast of sufficient height can be transported, but for this purpose two separate vehicles required are.

The invention contemplates one being transportable by a single vehicle Plant before. The vehicle is able, taking into account the relevant legal regulations, to transport a mast with which a drill pipe composed of three pipe lengths can be operated. This is particular advantageous because of the time-saving operation of the system. This time saving results from the possibility to Place a drill pipe composed of only two pipe lengths - to which the previously known devices are limited -

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to be able to use a drill pipe composed of three drill lengths. This results in about a 33% reduction the work cycles in which the individual pipe lengths must be assembled or disassembled if they are in the borehole is to be introduced or removed from it. This is done by using a compound or articulated, self-propelled, provided with a unique pivot connection system achieved. The swivel connection allows the weight to be distributed over three sets of axles instead of two sets of axles, as is the case with the previously known Vehicles is common.

Further features, details and advantages result from the following Description of a preferred embodiment of the Invention and from the attached drawing. Here show:

1 shows a side view of the drilling rig according to the invention Fig. 2 is a view from above of the mast of the system according to

Fig. 1;
FIG. 3 is a view of a pivot connection of the system from FIG

above;
FIG. 4 is a partially sectioned end view of the in FIG. 3

shown part of the system and
5 shows a schematic representation of the angular position of the drive shaft.

one

According to FIGS. 1 and 2, a system 10 / mTt has a force generating unit provided tractor 11 and a tandem vehicle or trailer 12. The two vehicles 11 and 12 are via an articulated pivot connection having arrangement 13 connected to one another, which is shown in more detail in FIGS.

The motor vehicle or the tractor 11 has a frame arrangement 14, with a front axle set 15 and a middle axle set 16 is provided. In this embodiment, the front and middle sets of axles each have two axles on. The frame assembly 14 is on the axle sets 15 and 16

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mounted and has a cab 17 arranged at its front part for the operator. Drive machines 18 are mounted on the frame arrangement 14 directly behind the cab 17. In the embodiment shown here, two drive machines 18 are provided. However, any number of prime movers, ie one or more prime movers, can be used, the number being limited only by the physical size of the tractor unit 11. The drive machines 18, which can be formed from internal combustion engines, turbines, electric motors or the like, transmit their power via a transmission and coupling arrangement 19 and a drive shaft 20 to a gearbox 21, where the power of the two drive machines 18 are combined and either transmitted to the axles 16 with the aid of a shaft 22 to drive them or fed to a drill winch 24 via a shaft 23. The shafts 20, 22 and 23 are effectively connected to one another at their ends by flexible coupling devices which allow limited movement of the shafts without the function of the device connected thereto being impaired.

The tandem unit 12 has a frame arrangement 25 which is attached to the rear axle set 26, which also has two axles is. As mentioned above, the drill winch 24 is mounted on the frame assembly 25 of the tandem unit 12 and over the drive shaft 23 is connected to the force generating device 18.

A telescopic mast 27 with an outer base part 27a and one in the outer base part 27a telescopically inserted, in the position of use overhead inner mast part 27b is pivotable about the axis 28 on a Supporting device 29 is hinged, the latter in turn being fastened to the end of the frame arrangement 25. It is also at the immutable or stationary support device 29 with the help of adjustable joints 31 a pivotable about the axis 28 around Y-shaped frame part 30 attached.

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Adjustable legs 32 are provided on the frame part 30. These can be pushed up if the system has to be moved. They can be extended downwards so that you can support yourself on the ground at the drilling or construction site.

To erect the mast in its vertical position and to initiate the necessary lifting force is at the point

34 of the frame assembly 25 of the tandem unit 12 and in place

35 of the base part 27a of the mast 27 a pair of hydraulic pressure cylinders 33 hinged. For safety reasons, alternating multi-level steps can be used to erect the mast Hydraulic lift cylinder systems are used, with the output stage of a double for forced control of the mast acting cylinder is formed when the mast passes through the dead center (equilibrium point) during the lifting or lowering movement passes through.

Once the mast 27 has been brought into a vertical position, the upper mast part 27b carrying the fixed tower roll (s) 36 becomes moved telescopically out of the lower base part 27a either with the aid of a wire pull or by hydraulic means, these two methods are well known in the art.

Figure 2 is a partial view of the drilling rig or rig from above, the mast parts 27a and 27b, the drive machines 18, the drill winch 24 and (in dashed lines) the dated Transmission 21 to the drill winch 24 leading drive shaft 23 shows.

3 and 4 show somewhat more clearly the arrangement of the pivot connection 13, which allows the use of an articulated Vehicle with three axles allows. With this a telescopic mast construction can be transported, with the help of which a mast construction composed of three pipe lengths can be transported Drill pipe can be operated. Fig. 3 is a top view of a central part of the plant, the Mast is removed to show the swivel mechanism when he is

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the tractor 11 connects to the tandem vehicle 12. A pair of mutually parallel, spaced apart arranged front arms 37a and 37b are attached to the front part of the tandem vehicle 12 and sufficiently raised to extend beyond the rear end of the tractor (see also Fig. 1).

Cross struts 38 are arranged between the arms 37a and 37b to reinforce and stiffen them.

3 and 4, a support plate 39 is rotatably attached to a support member 40, the former around one having a flange provided bolt 41 is rotatably mounted around. The supporting part

one
40 is attached to frame 42 of tractor 11 by welding, riveting, or other known means. The bolt 41 can also be attached to the frame 42, for example with the aid of a threaded bolt 43.

To center the support plate 39 on the support part 40, a circular one can be placed on the underside of the support plate 39 at a suitable point Guide ring 44 be welded, which has a slightly larger diameter than the circular part 40, so that the bolt 41 can easily be passed down through the two parts 39, 40. In this way, the The bolt opening formed in the support plate 39 is automatically centered in relation to the bolt opening formed in the support part 40.

On the outside of the support plate 39 are diametrically opposed Make two vertical support straps 45a and 45b attached roughly by welding.

The arms 37a and 37b are rotatably mounted on the support brackets 45a and 45b around cylindrical bolts 46a and 46b, which the Put through arms 37a and 37 ° and the support straps 45a and 45b with relatively little play.

A pair of headrest arms running parallel to each other

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47 and 48 are fastened to the support brackets 45a and 45t), for example by welding, and extend from these with respect to FIG Frame assembly 14 at an angle of about 10 to 45 degrees or more forward and upward.

The headrest has a cylindrical roller 49, which with the help of in the headrest arms 47 and 48 penetrate

circular openings pivoted cross bolts 49a and 49b between the upper ends of the head support arms 47 and 48 is stored. The roller 49 can alternatively also be held between the headrest arms 47 and 48 in that extending axially through roller 49 and head support arms 47 and 48 through a one-piece cylindrical rod.

The design of the headrest is a particularly advantageous and salient feature of the invention. From the description This device clearly shows that the headrest is actually a third independent functional element of the entire rig assembly can be viewed. The headrest moves with respect to both the motor vehicle unit 11 as well as with respect to the tandem unit 12 in such a way that it serves the mast 27 as a necessarily movable support.

For example, the headrest moves with respect to the tractor unit 11 in the lateral direction when the tandem unit 12 moves laterally. This allows the headrest to the left or right so that it remains under the mast when the tractor unit 11 is relative the tandem unit 12 rotates. The headrest is immovable with respect to the tandem unit 12 in the lateral direction, as it is Mast arrangement is. Thus, the relative position of the mast and headrest to one another remains unchanged, whereby the mast remains constant remains supported.

Second, the headrest is stationary with respect to the tractor unit 11 in the vertical direction in order to be able to move between the Mast and the cab 17 of the tractor a suitable distance

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maintain. Let the headrest be designed in such a way that the tandem unit 12 can be moved vertically with respect to the headrest. Since the mast is attached to the tandem unit 12, becomes a vertical rotation of the system when driving over uneven terrain Terrain translated into a sliding and lifting movement of the mast around the roller 49, for example in the manner of a seesaw, as is often the case can be found in children's playgrounds. Thus, it is shown how the headrest assembly is in a horizontal position with respect to a part of the vehicle carrying the drilling rig or the drilling rig Direction and moved in the vertical direction with respect to the other part of the vehicle.

Fig. 4 shows the position or the course of the shaft 23 through the open area of the pivot connection, that of the shaft 23 allows free movement with respect to the components of the drilling rig.

Fig. 5 is a schematic representation of the drive shaft 23 and the parts connected to it, the gearbox 21 and the drill winch 24. In Fig. 5 the components of the system are shown as they would be if the frame were to make a tight left turn . As can be seen, the length of the shaft 23 and the arrangement thereof are chosen such that when the shaft 23 shifts to the right or left, it is the same distance with respect to the center of rotation 41, the coupling device on the gearbox 21 and the coupling device on the gearbox 24 and has the same angle. The distances d and dj_ projected onto the shaft 23 between the center of rotation 41 and the corresponding coupling devices remain the same during every curve movement or displacement of the vehicle 11 with respect to the vehicle 12. During such a displacement, the angles cC and 6 also remain the same.

The advantage resulting from this is, in particular, that the system is displaced or displaced on the drilling parts normal operation of the power supply system and the drill winch 24 via the shaft 23 can be maintained

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254bU96

can be. The arrangement explained above, which relates to a of the center of rotation 41 allows horizontal lateral movement of the shaft 23, also allows vertical movement of the shaft 23 to. In a typical job, the rig or rig can be made operational by the drill winch 24 is mounted on the tandem vehicle 12 with the aid of known fastening means. The ones with carrying straps 45a and 45b, headrest arms 47 and 48 and the headrest 49 is mounted on a support plate 39 provided on the tractor vehicle 11 Support part 40 lowered and on the latter with the help of an adjusting ring 44 arranged around the support part 40 in a Brought to the position in which the support plate 39 and the support part

40 penetrating center holes are aligned. The flanged bolt 41 is then inserted through the center holes pushed through until the flange rests against the support plate. Then through a hole formed in the frame 42 a screw bolt 43 is inserted and into the bolt

41 are screwed in so that the latter is secured in this position.

The tractor 11 and the tandem vehicle 12 can then be connected to one another by the arms 37a and 37b of the Tandem vehicle 12 and the support straps 45a and 45b of the tractor 11 are brought together in an alignment and then the Hinge pins 46a and 46b through which arms and tabs are inserted. The mast 27 can then be placed on the system or the frame lowered and connected at the pivot points 28 and 35 to the front part resting on the roller 49.

Most of the mast weight is clearly on the central axes 16 stored, while a smaller part of the mast weight and the weight of the drill winch 24 on the rear axles 26 is stored. The front axles 15 carry the cab 17 and most of the weight of the power generating machines

The flexible design of the connection 13 enables the system or the frame to move over uneven terrain.

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A lateral pivoting is made possible by the fact that the support plate 39 on the support part 40 around the center pin 41 turns around. In addition, the side bolts 46a and 46b allow vertical pivoting movement. This plays between the arms 37a and 37b and the tabs 45a and 45b of the support plate 39. Flexible coupling devices at each end of the Shaft 23 allow vertical and horizontal displacement of the power transmission assembly while the system or the Frame is in operation at the drilling site.

The weight of the entire frame is fairly evenly distributed over three sets of axles, with the vehicle being articulated as a result of the Connection 13 remains a single vehicle. This creates a load-bearing capacity for the mast that is large enough to in order to be able to transport an extendable mast with which a drill pipe composed of three pipe lengths can be handled can be.

The above is only used to explain the inventive concept an embodiment of the subject matter of the invention based on in the drawing attached, but this is in no way intended to mean that the invention is only limited thereto should be. For example, instead of the above-mentioned two drive units, one, three or even four or several drive units can be used. The drive units can either use the drive axles and the drill winch be effectively connected with the help of gear drives or chain drives and drive shafts. Furthermore can various types of coupling, such as compressed air, electrical and hydraulic couplings between the gearboxes and the Drill winch can be used.

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Claims (1)

1. Self-propelled ^), articulated (s), movable (s), over uneven Drilling rig or rig that can be transported to a remote drilling site, marked by a tractor or a motor vehicle (11) with a front axle set (15) and a rear axle set (16), by a power generation unit (18) arranged on the tractor (11) for driving the tractor (11), by a set of axles connected to the tractor (11) (26) having and a drill winch (24) carrying tandem vehicle or trailer vehicle (12), by a pivotable connection unit (13) which connects the trailer (12) to the tractor (11) and is designed in this way is that it allows both vertical and horizontal pivoting movements between the two vehicles (11, 12) at the same time, by a drilling mast construction arranged on the trailer (12) (27) and by one attached to both vehicles (11, 12), the power from the force generating device (18) to the drill winch (24) transmitting power transmission device (19,20,21,23). 2. Drilling rig or drilling rig according to claim 1, characterized by a support part (40) arranged on the tractor (11), through a support plate (39) rotatably attached to the support part (40), through attached to the trailer (12), extending over the Elongated support arms (37a, 37b) extending towards the support plate (39) and by a rotatable connecting device (46a, 46b) arranged between the support arms (37a, 37b) and the support plate (39), which enables the vertical pivoting of the support plate (39 ) arranged support device (37a, 37b) allows. 3. Drilling rig or drilling rig according to claim 2, characterized by head support arms (47, 48) which are attached to the support part (40) and extend over the motor vehicle (11) and which carry the mast structure (27). 609822/0255 4. Movable vehicle formed from two parts, characterized by a tractor unit (11) mounted on two sets of axles (15, 16) with a force generating unit (18), by a tandem trailer (12) and mounted on a set of axles (26) by one between the tractor unit (11) and the Tandem trailer (12) arranged, the tandem trailer (12) with the tractor unit (11) connecting, both a horizontal as well as a two-dimensional swivel device (13) which allows the two vehicles (11, 12) to swivel out vertically, which has the following parts: a supporting part (40) fixedly attached to the tractor unit (11), a support plate (39) pivotably attached to the support part (40) with the aid of a pivot pin (41) passing through it, elongated support arms (37a, 37b) fixedly attached to the tandem trailer (12) and extending to the support plate (39) and laterally arranged, the support arms (37a, 37b) on the support plate (39) and a vertical pivoting movement of the Support plate (39) arranged support arms (37a, 37b) enabling, Pivot pin (46a, 46b). 5. Vehicle according to claim 4, characterized in that the tractor unit (11) has a frame structure (14) and a motor unit (18) and that the vehicle (11) also has a device (21), with the help of which the Motor unit (18) generated force is alternatively transmitted both to the drive of the tractor unit (11) / and to the tandem trailer (12). f>. Vehicle according to Claim 5, characterized by a drill mast (27) and a drill winch (24) which is fastened to the tandem trailer (12) and which is operatively connected to the power transmission unit (21) driven by the motor unit (18). 609822/0255 7. Articulated, movable drilling rig or drilling rig, marked by a tractor unit (11) with front and rear axles (15, 16), by a power generation unit arranged on the tractor unit (11) (18), by a pivotably connected to the tractor unit (11), on a rear axle set (26) mounted trailer (12), by a pivotable on the trailer (12), is in the essentially horizontally forward extending, telescopically telescoping drill mast (27), with the help of which 27.50 m (90 foot) long drill pipe sections are operable and the out horizontal position can be moved into a vertical position by a support device arranged on the drilling frame (10) (47,48,49) for the storage of the mast (27) in a horizontal position, by means of a mounted on the trailer (12) with the mast (27) can be brought into operative connection and by means of a power transmission device arranged on the tractor unit (11) (21), a drive device (19, 20) connected to the force generating unit (18) and a with the drill winch (24) and at least one axle (16) of the tractor unit (11) has connected output device (23,22). 8. Drilling rig according to claim 7 » characterized by a connecting unit (13) which pivotally connects the trailer (12) to the tractor unit (11) and which has a vertically extending pivot bolt unit (39, 40, 41) and which has a horizontally extending pivot bolt device (45a, 45b, 46a, 46b) to enable a vertical pivoting movement of the drilling frame components (27). 9. Drilling rig according to claim 8, characterized in that that the power generation unit (18) is formed by an internal combustion engine, that the power transmission device (21) has a gear transmission and one with the rear axles (16) of the tractor unit (11) 609822/025 & effectively connected drive shaft (22) and that the support device (47,48,49) on the connecting unit (13) elongated arms (47, 48) firmly connected and pivotable only in the horizontal direction, as well as one between the arms (47,48) rotatably mounted and the mast (27) supporting roller (49). 10. Arrangement for mounting a mast for a movable Drilling rig or drilling rig, I g eke nnze _ei j ^ u by / a horizontal pivoting movement permitting, on the front vehicle (11) of a / a movable drilling rig or drilling frame (10) attached support part (40), by attached to the support part (40), extending over the vehicle in front (11) elongated support arms (47, 48) extending through a drill mast arranged between the support arms (47, 48) (27) supporting device (49) and in sliding and partially rotating contact with the latter by a pivotable device (46a, 46b) allowing a partial vertical pivoting movement for connecting a tandem vehicle (12) with the support part (40). 11. The arrangement according to claim 10, characterized in that the device (49) has a transversely between the two support arms (47,48) rotatably supported, horizontally extending roller. 12. The arrangement according to claim 10, characterized in that the connecting device (46a, 46b) is formed by two horizontally extending bolts, the two vertically extending arms (45a, 45b) attached to the support part (39) and parts (37a, 37b) of the tandem vehicle (12) through. 609822/0255 ι ^λς ■ ♦ Blank page